Sapporo, Japan

Shota Hirai

This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignees: Hokkaido University, Letara Ltd.. Active years: 2025-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shota Hirai. Retrieved from https://idiyas.com/inventor/shota-hirai

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 2 

% Patents Active = 50.0

Average Co-Inventor Count = 2.0

ph-index = 1


Company Filing History:


Years Active: 2025-2026

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2 patents (USPTO):Explore Patents

Title: Shota Hirai: Innovator in Ignition and Rocket Combustion Technologies

Introduction

Shota Hirai is a notable inventor based in Sapporo, Japan. He has made significant contributions to the fields of ignition devices and rocket combustion systems. With a total of 2 patents, his work showcases innovative approaches to enhancing combustion efficiency and safety.

Latest Patents

Hirai's latest patents include an ignition device and a method for producing the same, as well as a rocket combustion system. The ignition device features a housing, bulk fuel made from plastic materials like polylactic acid (PLA) or epoxy resin, and at least two lead wires functioning as electrodes. The bulk fuel is designed to contain an internally dispersed powdery conductive material, resulting in a conductive solid fuel. One end of the lead wire is partially embedded in the bulk fuel, while the other end connects to a power source. By energizing the lead wire, a portion of the bulk fuel is gasified, which is then combusted through a reaction with an oxidant. Additionally, his cooling device for a rocket engine nozzle further enhances the performance and safety of rocket systems.

Career Highlights

Throughout his career, Shota Hirai has worked with various organizations, including Letara Ltd. and Hokkaido University. His experience in these institutions has allowed him to develop and refine his innovative technologies.

Collaborations

Hirai has collaborated with notable individuals in his field, including Landon Thomas Kamps and Harunori Nagata. These partnerships have contributed to the advancement of his research and inventions.

Conclusion

Shota Hirai is a prominent inventor whose work in ignition devices and rocket combustion systems demonstrates his commitment to innovation. His patents reflect a deep understanding of materials and engineering principles, paving the way for future advancements in these critical areas.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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